Halcyon H-View MaskH VIEW MASK The H View mask is a simple, yet rugged single lens dive mask with a black frame and soft fitting silicone skirt that surrounds a single lens, creating a low volume mask for easy clearing. This mask will fit most faces and features a double face seal on the mask skirt, which means that it is less likely to cause leaks during a dive. The H View mask includes a hard plastic protective case and features two, Halcyon branded, mask strap